Home / 12,816.43-19,231.93-5,030.71

Finding the Fourth Proportional to 12,816.43, 19,231.93 and 5,030.71

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Solution

The fourth proportional to 12,816.43, 19,231.93 and 5,030.71 is: 7,548.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,816.43 : 19,231.93 = 5,030.71 : x
  2. Step 2: Convert to fraction form
    12,816.43/19,231.93 = 5,030.71/x
  3. Step 3: Cross multiply
    12,816.43x = 19,231.93 × 5,030.71
  4. Step 4: Simplify right side
    12,816.43x = 96,750,220.78
  5. Step 5: Solve for x
    x = 96,750,220.78/12,816.43
  6. Step 6: Final answer
    x = 7,548.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.